{"product_id":"21100","title":"Air Pressure Sensing Switch FS-751 FS@ 0.05\" WC | NBK-21100","description":"\u003cp\u003e\u003cstrong\u003eNBK-21100 – Air Pressure Sensing Switch FS-751 | Field Set at 0.05\" WC\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eNBK-21100 Air Pressure Sensing Switch\u003c\/strong\u003e provides reliable detection of low-pressure differentials in HVAC and industrial air systems. Operating at a field setting of 0.05 inches WC, this ultra-sensitive switch is ideal for applications that require precise airflow detection and control. Built for dependable operation, it ensures consistent system performance and safety in combustion and ventilation setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003cbr\u003e• \u003cstrong\u003eUltra-Sensitive Sensing\u003c\/strong\u003e – Factory set at 0.05\" WC for precise low-pressure monitoring\u003cbr\u003e• \u003cstrong\u003eDurable and Accurate\u003c\/strong\u003e – Engineered to maintain calibration and performance in demanding HVAC environments\u003cbr\u003e• \u003cstrong\u003eUniversal Compatibility\u003c\/strong\u003e – Suitable replacement for a wide range of standard air proving switches\u003cbr\u003e• \u003cstrong\u003eReliable Airflow Control\u003c\/strong\u003e – Helps ensure proper system operation and protection against airflow failure\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr\u003e• SKU: 21100\u003cbr\u003e• Category: HVAC \/ Air Pressure Sensing Switches\u003cbr\u003e• Model: FS-751\u003cbr\u003e• Field Setting: 0.05 inch WC\u003cbr\u003e• Application: Air pressure monitoring and safety control in HVAC and combustion systems\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEquivalent To:\u003c\/strong\u003e\u003cbr\u003e• \u003cstrong\u003eCleveland Controls:\u003c\/strong\u003e FS-751\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy Choose the NBK-21100?\u003c\/strong\u003e\u003cbr\u003eThe \u003cstrong\u003eNBK-21100 Air Pressure Sensing Switch\u003c\/strong\u003e ensures your HVAC, ventilation, or combustion systems operate only when adequate airflow is detected—helping to prevent system damage and maintain safety. It's the perfect OEM-style replacement for sensitive air pressure monitoring applications, providing dependable performance and easy installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShipping \u0026amp; Availability:\u003c\/strong\u003e\u003cbr\u003eSpecial order item from NBK. Please allow 1–2 business days for processing before shipment.\u003c\/p\u003e","brand":"HVAC","offers":[{"title":"Default Title","offer_id":56929267908948,"sku":"SO-21100","price":79.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1067\/7698\/5940\/files\/21100-FS-751-scaled.jpg?v=1787841480","url":"https:\/\/total-hearth.shop\/products\/21100","provider":"total-hearth.shop","version":"1.0","type":"link"}